About
Dr. Jonathan Fish earned his Bachelor of Arts in Biology from Harvard University in 1990. He then completed his medical degree at Jefferson Medical College in Philadelphia in 1994, winning the Henry Keller Mohler Memorial Prize in Therapeutics that same year. He completed both his internship and internal medicine residency at the University of Maryland Medical Center, finishing in 1997. The American Board of Internal Medicine has certified him in his specialty.
Dr. Fish has practiced internal medicine in Howard County, Maryland for over 22 years. He holds membership in the American College of Physicians, the American Medical Association, and the Medical and Chirurgical Society of the State of Maryland. Since 2013, he has served as Chairman of the Quality and Safety Committee and on the Board of Trustees at Howard County General Hospital. His clinical passions include cardio prevention, sleep medicine, and the role of mindfulness in improving health outcomes. A childhood spent observing his grandfather - an old-school family physician whose basement office never seemed to close - shaped his vision of a doctor as an unyielding partner in wellness. Outside the practice, Dr. Fish spends time with his family, enjoys the beach, and watches Philadelphia sports teams.
Education & Training
Undergraduate
Harvard University, Cambridge, MA - Bachelor of Arts, Biology (1990)
Medical School
Jefferson Medical College, Philadelphia, PA - Doctorate of Medicine (1994)
Residency
University of Maryland Medical Center - Internship (1994-1995), Residency in Internal Medicine (1995-1997)
Additional Training
Henry Keller Mohler Memorial Prize in Therapeutics, Jefferson Medical College (1994)
Certifications
Conditions Treated
Who is Dr. Fish right for?
Dr. Fish is a strong fit for adults who want a proactive approach to their long-term health. Patients with cardiovascular risk factors, sleep concerns, or an interest in mindfulness-based wellness benefit from his clinical focus. Those managing chronic conditions benefit from his internal medicine depth and his emphasis on early disease detection. His MDVIP model suits patients who value same- or next-day access and direct after-hours contact with their physician.
Similar Doctors Nearby
Dr. Scott PoultonMD
diabetes, heart disease, high blood pressure +7 more
Dr. Randal RiesettMD
cardiovascular disease, hypertension, gastrointestinal conditions +2 more
Dr. William SawayMD, FACP
diabetes, hypertension, cardiovascular disease +1 more
Frequently Asked Questions
Dr. Fish specializes in internal medicine and preventive medicine. His deepest clinical interests include cardio prevention, sleep medicine, and mindfulness-based approaches to health. He focuses on catching disease in its earliest stages through his Annual Wellness Program.
Yes. The American Board of Internal Medicine certifies Dr. Fish in his specialty. He earned his medical degree from Jefferson Medical College in 1994 and completed his residency at the University of Maryland Medical Center.
Dr. Fish earned his undergraduate degree in Biology from Harvard University. He then completed his medical degree at Jefferson Medical College in Philadelphia, where he won the Henry Keller Mohler Memorial Prize in Therapeutics. He completed his internship and residency in internal medicine at the University of Maryland Medical Center.
Dr. Fish has practiced internal medicine in Howard County, Maryland for over 22 years. His long tenure in the community means he brings deep local knowledge and lasting patient relationships to his practice.
Dr. Fish chairs the Quality and Safety Committee at Howard County General Hospital and serves on its Board of Trustees. He has held both roles since 2013. He also contributes to the Howard County Cancer Coalition.
Yes. Members can reach Dr. Fish by phone after hours and on weekends. This direct access is a core benefit of his MDVIP concierge model.
Dr. Fish believes a physician should serve as an unyielding partner in a patient's wellness. His approach centers on prevention and early detection rather than reactive treatment. He incorporates cardio prevention, sleep medicine, and mindfulness into his clinical work.
Yes. Sleep medicine is one of Dr. Fish's core clinical interests. He addresses sleep concerns as part of a broader preventive and whole-health approach for his adult patients.
Doctor profile last updated March 21, 2026